Calendering-machine



(No Model.)

H.. J. FRINK. vGALENDBRING MACHINE.

Patented Mar. zo, y1894.

EMME I m TME/55555.

UNITED STATES .PATENT owne.,

HERBERT J. ERINK, oEHoLYoKE',` MAfssAenUsETTs.4

CALENDRlNc-MACHINE.

` SPECIFICATION forming part of Letters Patent No. 516,646, dated March-2o, 1894..y

Application nea June 5,1893. seria-N0. 476,633. (No man.;

To @ZZ whom t may concern: l

Be it known that I, HERBERT J. FRINK, of Holyoke, county of Hampden, State of Mas sachusetts, have invented an Improvement in Calendering-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts. v

This invention has for its object the production of a calender-ing machine wherein the pressure upon either or both ends of the calender rollsmay be quickly and easily adjusted, and the mechanism whereby such results are attained is so arranged that the operator has full control thereof at one side of the machine.

In United States Patent N o. 282,031, dated July 3l, 1883, a paper calendering machine is shown as provided with mechanism for simultaneously raising or depressing both ends of the calender rolls, and also for readily varyingthe pressure at one end, butin order to also vary the pressure at the other end the mechanism must be operated to change the pressure ofthe first end mentioned, and then both ends are simultaneously operated until .the required pressure at the other end is obtained. This retrograde movement, as it may be called, is objectionable in that it consumes time, during which a considerableamount of material which is being finished in the calendering machine is imperfectly finished, causing more or less damage, and the nicety of adjustment cannot be properly preserved. In other words, one end of the rolls may be adjusted independently, but not so the other end, and by the mechanism hereinafter described either end of the rolls may be adjusted independently or simultaneously.

In accordance therewith myinvention consists, in a calendering machine, of lindependent adjusting shafts to vary the pressure at the ends of the rolls, combined with a separate clutch member for and to operate each of said adjusting shafts respectively, and a common actuator rotatable in either direction, located adjacent to said clutc'h members and adapted to be thrown into operative engagement with either or both of them to rotate the adjusting shafts singly or simultaneously in either direction, substantially as willbe described.

Other features of my invention will'be hereinafter describedI and particularly pointed out in the claims. 1

Figure l lin front elevation shows a calendering machine, with my invention embodied therein. Fig. 2 is a right hand side view thereof. Fig. 3 is an enlarged detail, partly broken out, of the pressure operating mechanism. Fig. 4 is a detached view of one part of the clutch mechanism, and Figs. 5` and 6 are details to be referred to.

The upright frames A, in which usual calender rolls B have their bearings, tie rods 1 and 2, and the cross-heads A may be and are vof usual construction.

A nut a, having an annular shoulder a near its lower end, and iuteriorly threaded, is extended through each cross-head from the lower side, so as to rotate freely therein, and toothed wheels b and b', are rigidly attached to the ends of the respective nuts above the cross-heads. Threaded rods c, c', are extended through the nuts a and are connectedat their lower ends to caps 02X, one only being shown', in'Fig. 2, which bear upon the journals of the topmost roll of the stack, so that rotation of the threaded "nuts will raise or lower the threaded rods c, c', to therebymove the caps c2* correspondingly.

' The mechanismV thus far described is substantially that shown in the patent referred to.

Upright adjusting shafts b2, b3, one at each side of the machine, are supported in suitable bearings ax, b", secured to the frame, pinions 02,03, being secured to said shafts and in mesh with thelarge gears b and b', respectively, as shown in Fig. 1, while the lower ends of said shafts have secured thereto, asv

herein shown,bevel gearsd and cl', engaging other bevel gears d2, d3, to be described.' An actuating shaft e has its bearings in brackets ex, forming, as herein shown, a part of the bearings bx, said shaft being`preferably'reduced in diameter, as shown in dotted lines Fig. 3, Where it enters its bearings to prevent longitudinal movement thereof. The bevel gear d2 is fast on the actuating shaft e, but the gear d3 is loosev thereon, a key or collar 10, see dotted lines Fig. 3, bearing againstits IOO recessed hub and preventing longitudinal movement. The outer face of said hub is toothed or serrated, as at e', and said toothed or serrated hub forms a clutch member, whereby it is adapted to be engaged at times by the toothed' inner face e2 of the hub of an actuator, shown as a hand wheel C free torotate or move longitudinally upon the actuating shaft when in the position shown in Fig. 3, the outer face e3 of the hub being likewise toothed, as shown.

A suitable collar f is secu red to the shaft e, and between it and the actuator a anged hub f is splined to the actuating shaft, the hub being grooved at fx, see Fig. 5, to receive the splines, see dotted lines Fig. 3. The flange f2, Figs. 3, 5 and 6, of said hub is preferably rounded, whereby it may be readily grasped and moved by the operator, and the inner face of the hub is toothed, as at e, to form a second clutch member. l

As will be evident the two clutch members, the actuator C, and its toothed hub forming connections between said members and the actuator, form a double clutch, and it is 0bvious that any other suitable clutch may be used, the form of the teeth may be varied, or friction surfaces may be used instead of the teeth. With the parts in the position shown in Figs. l and 3, rotation of the hand-wheel or actuator C will produce no effect, but if it is moved along the shaft e to the right, Fig. 3, until the toothed faces e2 and e engage, and is then rotated, the gears d3, d', will be rotated, and through the adjusting shaft b3 and intermediate gearing the cap at the left, Fig. l, will be raised or depressed, to decrease or increase the pressure at that end of the stack of rolls B. To vary the pressure at the other end of the rolls it is only necessary to move the actuator C to the left on the shaft e, whereby the toothed surfaces e and e2 are disengaged, continuing the movement until the toothed surfaces e3 and e4 are in engagement. Rotation of the actuator will then` through the hub f', rotate the shaft e and gear d2 fast thereon, and thereby actuate the threaded rod c to raise or lower the cap 02X at the right hand end of the stack, varying the pressure at that end of the rolls'B. If it is desired to vary the pressure at both ends of the rolls simultaneously, the actuator C and the hubf', still in engagement, are moved together to the right, Figs. 1 and 3, till the surfaces e and e2, also engage, whereupon rotation of the actuator C will rotate the gear d3 directly, and the gear d2 indirectly through shaft e and hub f.

From the foregoing it will be seen that the clutch members which operate the adjusting shafts are adapted to be brought into engagement with the actuator by the connections `between it and the said separate clutch members,.

and that the pressure can beimmediately increased or decreased at each end of therolls independently or simultaneously, so that the greatest ncety of adjustment is secured with ease and rapidity.

It"` the clutch mechanism is in engagement to adj ust the ends of the rolls simultaneously, and it is desired to vary the pressure at the right hand end, the hub f is moved to the left out of engagement with the actuator and the actuating shaft rotated by means of the flange f2, thus leaving the actuator C in position to rotate the adjusting shaft b3 independently, or both actuator and hub, remaining in engagement with each other, may be moved to the left until the faces e and e2, are disengaged, when the actuating shaft and adjusting shaft b2 can be rotated by the actu ator or hand Wheel C.

This invention is not restricted to the exact construction and arrangement as herein shown, as the same may be varied or altered without departing from my invention.

I claim- 1 l. In a calendering machine, independent adjusting shaftsto vary the pressure at the ends of the rolls, combined with a separate clutch member for and to operate each of said adjusting shafts respectively, a common actuator rotatable in either direction, located adjacent to said clutch members and adapted to be thrown into operative engagement with either or both of them, to rotate the adjust 1 ing shafts singly or simultaneously in either direction, substantially as described.

2. In a calendering machine, caps for the ends of the top roll of the stack, and rotatable adjusting shafts geared to and to raise or lower said caps to vary/the pressure on the rolls, combined with an actuator shaft geared to one of said adjusting shafts, a clutch member rotatable with the actuating shaft to operate one adjusting shaft, a separate clutch member geared to and to operate the other adjusting shaft, an actuator supported loosely on the actuating shaft' adjacent said clutch members, and rotatable in either direction, said actuator being adapted to be thrown into engagement with either or both members to move the end caps singly or simultaneously in either direction, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERBERT J. FRIN K.

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